4221104421253 has 2 divisors, whose sum is σ = 4221104421254. Its totient is φ = 4221104421252.

The previous prime is 4221104421217. The next prime is 4221104421263. The reversal of 4221104421253 is 3521244011224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4129097152324 + 92007268929 = 2032018^2 + 303327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4221104421253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4221104421263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2110552210626 + 2110552210627.

It is an arithmetic number, because the mean of its divisors is an integer number (2110552210627).

Almost surely, 2^{4221104421253} is an apocalyptic number.

It is an amenable number.

4221104421253 is a deficient number, since it is larger than the sum of its proper divisors (1).

4221104421253 is an equidigital number, since it uses as much as digits as its factorization.

4221104421253 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15360, while the sum is 31.

Adding to 4221104421253 its reverse (3521244011224), we get a palindrome (7742348432477).

The spelling of 4221104421253 in words is "four trillion, two hundred twenty-one billion, one hundred four million, four hundred twenty-one thousand, two hundred fifty-three".